PPE.

1 👥 Cohort Description

Age and Sex Distribution

Cohort Overview

Table 1a. Cohort Description: Overall
Characteristic N = 1471
Age
    Median (Q1, Q3) 37 (34, 44)
    Unknown 13
Age group
    age ≥15-<25 1/134 (0.7%)
    age ≥25-<35 45/134 (34%)
    age ≥35-<45 62/134 (46%)
    age ≥45-<55 19/134 (14%)
    age ≥55 7/134 (5.2%)
    Unknown 13
Sex
    Female 38/134 (28%)
    Male 96/134 (72%)
    Unknown 13
Period
    First Three Days 74/147 (50%)
    Last Two Days 73/147 (50%)
Years of Professional Experience
    Median (Q1, Q3) 11 (8, 17)
    Unknown 13
Experience in VHF Response 101/134 (75%)
    Unknown 13
The IDTM is an Advantage to the Systems Used in the Past 117/121 (97%)
    Unknown 26
Envisioning Usage of IDMT in the Future
    Yes 121/121 (100%)
    Unknown 26
1 n/N (%)

Cohort by Period

Table 1b. Cohort Description by Period
Characteristic Overall
N = 147
1
First Three Days
N = 74
1
Last Two Days
N = 73
1
p-value2
Age 0.67
    Median (Q1, Q3) 37 (34, 44) 37 (34, 43) 37 (34, 44)
    Unknown 13 8 5
Age group 0.89
    age ≥15-<25 1/134 (0.7%) 1/66 (1.5%) 0/68 (0%)
    age ≥25-<35 45/134 (34%) 22/66 (33%) 23/68 (34%)
    age ≥35-<45 62/134 (46%) 32/66 (48%) 30/68 (44%)
    age ≥45-<55 19/134 (14%) 8/66 (12%) 11/68 (16%)
    age ≥55 7/134 (5.2%) 3/66 (4.5%) 4/68 (5.9%)
    Unknown 13 8 5
Sex 0.78
    Female 38/134 (28%) 18/66 (27%) 20/68 (29%)
    Male 96/134 (72%) 48/66 (73%) 48/68 (71%)
    Unknown 13 8 5
Years of Professional Experience 0.66
    Median (Q1, Q3) 11 (8, 17) 11 (8, 17) 12 (8, 18)
    Unknown 13 8 5
Experience in VHF Response 101/134 (75%) 50/66 (76%) 51/68 (75%) 0.92
    Unknown 13 8 5
The IDTM is an Advantage to the Systems Used in the Past 117/121 (97%) 58/61 (95%) 59/60 (98%) 0.62
    Unknown 26 13 13
Envisioning Usage of IDMT in the Future
    Yes 121/121 (100%) 61/61 (100%) 60/60 (100%)
    Unknown 26 13 13
1 n/N (%)
2 Wilcoxon rank sum test; Fisher’s exact test; Pearson’s Chi-squared test

2 📊 Survey

Overall

First Three Days

Last Two Days

3 🧰 Statistical Evaluation

3.1 ⏰ By Period

3.1.1 Overall

Observed Response

Overall, people were slightly more likely to give higher ratings in the Last Two Days (p-value = 0.14).

Predicted Probabilities

3.1.2 By Variables

Significance of Period Effect by Question

Predited Probabilities by Variable

Annoying – Enjoyable

Not understandable – Understandable

Creative – Dull

Easy to learn – Difficult to learn

Valuable – Inferior

Boring – Exciting

Not interesting – Interesting

Unpredictable – Predictable

Fast - Slow

Inventive – Conventional

Obstructive – Supportive

Good – Bad

Complicated – Easy

Unlikable – Pleasing

Usual – Leading edge

Unpleasant – Pleasant

Secure – Not secure

Motivating – Demotivating

Meets expectations – Does not meet expectations

Inefficiant – Efficient

Clear – Confusing

Impractical – Practical

Organized – Cluttered

Attractive – Unattractive

Friendly – Unfriendly

Conservative – Innovative

3.2 👨🏽‍⚕️Experience in VHF Response

3.2.1 Overall

Observed Response

Overall, there was no difference in rating between participants with and without previous experience in VHF response (p-value = 0.33).

Predicted Probabilities

3.2.2 By Variables

Significance of experience Effect by Question

Predited Probabilities by Variable

Annoying – Enjoyable

Not understandable – Understandable

Creative – Dull

Easy to learn – Difficult to learn

Valuable – Inferior

Boring – Exciting

Not interesting – Interesting

Unpredictable – Predictable

Fast - Slow

Inventive – Conventional

Obstructive – Supportive

Good – Bad

Complicated – Easy

Unlikable – Pleasing

Usual – Leading edge

Unpleasant – Pleasant

Secure – Not secure

Motivating – Demotivating

Meets expectations – Does not meet expectations

Inefficiant – Efficient

Clear – Confusing

Impractical – Practical

Organized – Cluttered

Attractive – Unattractive

Friendly – Unfriendly

Conservative – Innovative